Sets The trail and file name to where log data is published. By default, the file is created in The present working directory, and it’s named hotspot.log.
Autotunes RTM locking based on the abort ratio. This ratio is specified by the -XX:RTMAbortRatio choice. If the quantity of aborted transactions exceeds the abort ratio, then the tactic made up of the lock is deoptimized and recompiled with all locks as typical locks. This option is disabled by default. The -XX:+UseRTMLocking option must be enabled.
Sets a custom command or even a series of semicolon-divided instructions to run when an OutOfMemoryError exception is initially thrown. When the string consists of spaces, then it have to be enclosed in quotation marks. For an example of a command string, see The outline of your -XX:OnError possibility.
The argument file have to consist of only ASCII figures or characters in process default encoding that’s ASCII friendly, which include UTF-8.
If possibly argument is NaN and neither argument is infinite, then the result is NaN. The computed result have to be in one ulp of the precise result. If a person parameter is held continual, the results should be semi-monotonic in another parameter.
Sets the most code cache dimension (in bytes) for JIT-compiled code. Append the letter k or K to point kilobytes, m or M to point megabytes, or g or G to point gigabytes. The default most code cache size is 240 MB; in case you disable tiered compilation with the option -XX:-TieredCompilation, then the default measurement is forty eight MB.
Allows the transformation of scalar operations into superword operations. Superword is actually a vectorization optimization.
To include many instructions, possibly specify the -XX:CompileCommand choice several situations, or different Every argument with the new line separator (n). The subsequent commands can be found:
When the argument is NaN, then the result is NaN. When the argument is zero, then the result is actually a zero Along with the very same signal as the argument.
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Specifies the maximum measurement (in bytes) of the information chunks within a recording. Append k or K, to specify the size in KB, or m or M to specify the dimensions in MB, or g or G to specify the dimensions in GB. By default, the utmost size of information chunks is ready to 12 MB.
These java alternatives are deprecated and could be taken out in a very upcoming JDK release. They’re nonetheless approved and acted on, but a warning is issued after they’re utilized.
Make use of a degree of debug read here for one of the most applicable information, or maybe a amount of trace for all of what was logged for PrintTenuringDistribution.